From a3a99d7a076df8b2dad39c8e22e83b0e60f500e8 Mon Sep 17 00:00:00 2001
From: tamasmeszaros <meszaros.q@gmail.com>
Date: Wed, 8 Jan 2020 10:49:54 +0100
Subject: [PATCH] Do not translate the normal of drainhole points.

---
 src/libslic3r/SLAPrint.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/SLAPrint.cpp b/src/libslic3r/SLAPrint.cpp
index 1e00e6edb..4d34c09c7 100644
--- a/src/libslic3r/SLAPrint.cpp
+++ b/src/libslic3r/SLAPrint.cpp
@@ -1184,7 +1184,7 @@ sla::DrainHoles SLAPrintObject::transformed_drainhole_points() const
     auto tr = trafo().cast<float>();
     for (sla::DrainHole &hl : pts) {
         hl.pos = tr * hl.pos;
-        hl.normal = tr * hl.normal;
+        hl.normal = tr * hl.normal - tr.translation();
     }
     
     return pts;